Add a command-line option for specifying a particular build to test and for p...

chrome/test/mini_installer_test/mini_installer_test_util.h

Index: chrome/test/mini_installer_test/mini_installer_test_util.h
===================================================================
--- chrome/test/mini_installer_test/mini_installer_test_util.h	(revision 30549)
+++ chrome/test/mini_installer_test/mini_installer_test_util.h	(working copy)
@@ -60,22 +60,24 @@
   // Returns the directory containing exe_name.
   static std::wstring GetFilePath(const wchar_t* exe_name);
 
+
   // This method will get the list of all folders or files based on the passed
   // 'path' and 'pattern' argument. The 'pattern' argument decides if the
   // requested file is a full or a differential installer.
   static bool GetLatestFile(const wchar_t* path, const wchar_t* pattern,
                             FileInfoList *file_name);
 
-  // This method will get the previous build number
-  static void GetPreviousBuildNumber(const std::wstring& path,
-      std::wstring *build_number, const wchar_t* channel_type);
+  // This method retrieves the previous build version for the given diff
+  // installer path.
+  static bool GetPreviousBuildNumber(const std::wstring& path,
+      std::wstring *build_number);
 
   // This method will get the previous full installer based on 'diff_file'
   // and 'channel_type' arguments. The 'channel_type'
   // parameter decides if the build is stable/dev/beta. The 'diff_file'
   // parameter will hold the latest diff installer name.
   static bool GetPreviousFullInstaller(const std::wstring& diff_file,
-      std::wstring *previous, const wchar_t* channel_type);
+      std::wstring *previous);
 
   // This method will return standalone installer file name.
   static bool GetStandaloneInstallerFileName(FileInfoList *file_name);